import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;


public class Test {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		String key="OS6IQ0OIE0I1R3FG3WGNUE3E3";
		long t=System.currentTimeMillis();
		String m=key+t;
		String s=crypt(m);
		System.out.println( "ts:"+t);
		System.out.println( "signmsg:"+s);
}
	public static String crypt(String str) {
		if (str == null || str.length() == 0) {
			throw new IllegalArgumentException(
					"String to encript cannot be null or zero length");
		}

		StringBuffer hexString = new StringBuffer();

		try {
			MessageDigest md = MessageDigest.getInstance("MD5");
			md.update(str.getBytes());
			byte[] hash = md.digest();

			for (int i = 0; i < hash.length; i++) {
				if ((0xff & hash[i]) < 0x10) {
					hexString.append("0"
							+ Integer.toHexString((0xFF & hash[i])));
				} else {
					hexString.append(Integer.toHexString(0xFF & hash[i]));
				}
			}
		} catch (NoSuchAlgorithmException e) {
			e.printStackTrace();
		}

		return hexString.toString();
	}
}
